Heat-generator.



No. 859,130. PATENTED JULY 2, 1907. W. R. SMITH.

HEAT GENERATOR.

AIPPLIOATION FILED we. 16, 1906.

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UNITED STATES PATENT OFFICE.

WILLIAM R. SMITH, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO HATTIE .1. SMITH, OF PITTSBURG, PENNSYLVANIA.

HEAT-GENERATOR.

Patented July 2, 1907.

Application filed August 16,1906. serial No- 330,891.

To all whom it. may concern:

Be it known that I, WILLIAM B. SMITH, a citizen of the United States, residing at Bingham and Omaha streets, Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Heat-Generator, of which the following is a specification.

This invention relates to heat-generators and has for its object to provide improved means for super-heating gas or other fluid preparatory to feeding the same to the burners.

A further object of the invention is to provide a retort or generator having a perforated cylinder arranged within the same and constitutinga mixing-chamber, said cylinder being extended through one wall of the retort and operatively connected with a source of steam or hot-air supply whereby the gas or volatile fluid becomes more thoroughly mixed and superheated before being forced or discharged into the retort.

A still further object of the invention is to generally improve this class of devices so as to increase their utility, durability and efficiency.

In the accompanying drawing, in which similar numerals of reference indicate corresponding parts, there is illustrated a top plan view partly in section of a preferred form of embodiment of the invention capable of carrying the same into practical operation, it being understood that various changes in form, proportions, size and minor details of construction may be resorted to within the scope of the appended claims.

The improved device is preferably connected in a gas or other fluid supply pipe between the gas-meter and the brn'ner and consists of a retort or generator 5 preferably cylindrical in shape shown and having one end thereof closed and its opposite end provided with a reduced neck 6 threaded as indicated at 7 for connection with a coupling 8.

Disposed within the retort 5 and spaced from the side walls thereof is a cylinder or mixing-chamber 9 having one end thereof perforated as indicated at 10 and its opposite end provided with an angular extension constituting a fuel conducting pipe 11 the walls of which are imperforate and extend through the base of the retort 5, there being bushing or washer 12 threaded in the pipe 11 so as to prevent the escape of the gas from the retort.

Communicating with the interior of the mixing chamber and engaging the threads 13 of a coupling member 1-1 is one end of a laterally extending fuel conducting pipe 15 the opposite end of which is connected with the main supply pipe, there being a suitable valve 16 for controlling the passage of fuel from the main supply pipe to the mixing-chamber.

Extending longitudinally of the pipe 11 and spaced from the side walls thereof is a pipe or tube 1.7 the lower end of which passes through a suitable packing or gland 18 in the lower end of the pipe 11 and is connected in any suitable manner with a source of compressed air, hot air or steam supply whereby the gas or fuel will be heated before being discharged into the retort.

The upper or free endof the pipe 17 is bent at right angles to form a nozzle 19 preferably disposed at the bend 20 in the mixing-chamber 9 and terminating short of the perforated end of said mixing chamber so that the discharge of steam or hot air from the nozzle 19 will come in direct contact with the superheated gas or fuel in the mixing-chamber and thus expand the latter and cause the steam or hot air and gas to thoroughly commingle before passing through. the perforations of the mixing-chamber into the retort.

Connected with the coupling 8 is a distributing pipe 21 provided with a plurality of branch pipes 22 which lead to a furnace, stove or other device to be heated and are provided with the usual burners.

As a means for regulating the quantity of steam or hot air admitted to the mixing-chamber through the pipe 17 the latter is provided with a valve or turning plug 23 similar in constructionto the valve 16 in the fluid conducting pipe.

In operation, steam or hot air is admitted to the pipe 1.7 by regulating the valve 23 from whence it passes through the mixing-chamber into the nozzle 17 and thence through the discharge openings or perforations into the retort. The valve 16 is then opened thus permitting the gas or other fuel to enter the extension 11 of the mixing-chamber where it comes in contact with the pipe 17 and is thus superheated before reaching the perforated end of the mixing-chamber. If desired, however, the gas or other fluid may be admitted first to the mixing-chamber and the steam or air subsequently admitted by regulating the valve 23, as will be readily understood.

The steam from the nozzle 17 as it comes in contact with the superheated gas or volatile fluid in the perforated end of the mixing-chamber thoroughly expands the latter and forces the same through the discharge openings in said mixing-chamber into the retort from whence it is fed through the distributing pipe 21 and branch pipe 22 to the burners.

From the foregoing description it is thought that the construction and operation of the device will be readily understood by those skilled in the art and further description thereof is deemed unnecessary.

Having thus described the invention what is claimed 1. In a device of the class described, a retort, a mixingchamber arranged within the retort and having one end thereof perforated and its opposite end imperforate and ing short of the perforated end thereof for superheating the fuel.

2. In a device of the class described, a retort, a perfo- 1 rated mixing-chamber disposed within the retort and terminating short of one end thereof, a fuel conducting pipe communicating with the mixing-chamber, a fluid conducting pipe disposed within the fuel conducting pipe and having its discharge end centered within the mixing; chamber for super-heating the fuel, and a valve for controlling the flow of fluid in said pipe.

3. In a device of the class described, a retort, a mixingchamber arranged within the retort and having one end thereof perforated and its opposite end imperforate and extended laterally through the adjacent wall of the retort, a fuel conducting pipe communicating with the mixingchamber, a fluid conducting pipe arranged within the mixing-chamber and having its free end bent laterally to form a nozzle, and valves for controlling the fluid in the steam and gas pipes.

4. In a device of the class described, a retort, having one end thereof reduced, a distributing pipe communicating with the reduced end of the retort and provided with a plurality of branch pipes, a mixing-chamber extended longitudinally of the retort and having one end thereof perforated and its opposite end imperforate and extended laterally through the adjacent wall of the retort, a fuel conducting pipe communicating with the mixing-chamber, a fluid conducting pipe extending longitudinally of the imperforate end of the mixing-chamber and having its free end bent to form a nozzle terminating short of the perforated end of the mixingchamber, and valves for controlling the supply of fluid in the fuel and fluid conducting pipe, respectively.

In testimony that I claim the foregoing as my own, I have hereto aflixed by signature in the presence of two witnesses.

WILLIAM R. SMITH. Witnesses J. W. BOICE, Rom. B. BROWN. 

